<ul class="inline">
  <li ng-show="!hosts_o.length">
      can't find any host here.
  </li>

  <li ng-repeat="host in hosts_o" style="text-align:center; margin-left:50px;">
    <img src="/static/images/host.jpg" style="width:64px; height:64px" ng-click="show_details(host, 'server')" alt="{{host.host_name}}" /><br />
     {{host.host_name}}
  </li>
</ul>

<hr>
<ul class="inline">
    <li ng-repeat="vm in vms_o" style="text-align:center; margin-left:50px;">
        <img src="/static/images/icon/vm.png" style="width:64px; height:64px" ng-click="show_details(vm, 'instance')" alt="{{vm.name}}" /><br />
        {{vm.name}}
    </li>
</ul>